5 risk factors for ovarian cancer

Ovarian cancer is one of the most common malignant tumors of the female reproductive system. Its incidence rate ranks third after cervical cancer and uterine body cancer, but its mortality rate ranks first among all gynecological tumors. Its 5-year survival rate is less than 30%, which seriously threatens women's health and life. It is currently believed that the incidence of ovarian cancer is related to the following factors:

1. Early menarche and late menopause

Studies have found that in each menstrual cycle, the ovarian epithelium proliferates rapidly after ovulation and mitosis is active around the ovulation point. Therefore, the more ovulation cycles a woman has, the greater the risk of ovarian cancer. Therefore, early menarche and late menopause are one of the risk factors for ovarian cancer.

2. Single and childless

Studies have found that women who are unmarried or have never given birth are 1.7 times more likely to develop ovarian cancer than women who have given birth. Pregnancy can reduce the risk of ovarian cancer. The more pregnancies and cumulative months of pregnancy, the lower the risk of ovarian cancer. The first pregnancy has the strongest protective effect, which can reduce the risk of ovarian cancer by about 40%.

3. High-fat diet

High animal fat intake can increase the risk of ovarian cancer. There are three mechanisms for this danger: first, animal fat exerts its carcinogenic effect through a certain hormonal effect; second, the polycyclic hydrocarbons in animal fat are carcinogenic to the ovaries; third, after animal fat is ingested, it changes the body's immune function and increases the risk of cancer.

4. Genetics

Ovarian cancer has a clear tendency to cluster in families, indicating that genetic factors also play a certain role in the development of ovarian cancer.

5. Industrial contact

Talc and asbestos can migrate into the abdominal cavity and cause atypical hyperplasia of the ovarian epithelium, thereby increasing the risk of ovarian cancer.